diff --git a/src/Mod/Part/App/ExtrusionHelper.h b/src/Mod/Part/App/ExtrusionHelper.h
index 8c14d08a16..90c24eab59 100644
--- a/src/Mod/Part/App/ExtrusionHelper.h
+++ b/src/Mod/Part/App/ExtrusionHelper.h
@@ -28,6 +28,8 @@
 #include <gp_Dir.hxx>
 #include <TopoDS_Shape.hxx>
 
+#include <Mod/Part/PartGlobal.h>
+
 
 namespace Part
 {